JLANG::JStringFacet Class Reference

Facet class to specify parsing of a JLANG::JString object. More...

#include <JStringFacet.hh>

Inheritance diagram for JLANG::JStringFacet:

Public Types
typedef std::istreambuf_iterator< char, std::char_traits< char > >	istreambuf_iterator
typedef std::ostreambuf_iterator< char, std::char_traits< char > >	ostreambuf_iterator

Public Member Functions
	JStringFacet (std::size_t refs=0)
	Constructor.
virtual JStringFacet *	clone () const
	Clone this facet.
istreambuf_iterator	get (const istreambuf_iterator __begin, const istreambuf_iterator __end, const std::ios_base &format, std::ios_base::iostate &result, std::string &buffer) const
	Get string.
ostreambuf_iterator	put (ostreambuf_iterator out, const std::ios_base &format, const char c, const std::string &buffer) const
	Put string.
std::istream &	ignore (std::istream &in) const
	Ignore characters until next end of line.
std::istream &	getline (std::istream &in, std::string &buffer) const
	Read characters until next end of line.

Static Public Member Functions
static int	getIndex ()
	Get index for stream associated facet data.

Static Public Attributes
static std::locale::id	id

Protected Member Functions
virtual istreambuf_iterator	do_get (const istreambuf_iterator __begin, const istreambuf_iterator __end, const std::ios_base &format, std::ios_base::iostate &result, std::string &buffer) const
	Get string.
virtual ostreambuf_iterator	do_put (ostreambuf_iterator out, const std::ios_base &format, const char c, const std::string &buffer) const
	Put string.
virtual istreambuf_iterator	do_ignore (const istreambuf_iterator __begin, const istreambuf_iterator __end) const
	Ignore characters until next end of line.
virtual istreambuf_iterator	do_getline (const istreambuf_iterator __begin, const istreambuf_iterator __end, std::ios_base::iostate &result, std::string &buffer) const
	Read string.

Private Member Functions
	JStringFacet (const JStringFacet &)
void	operator= (const JStringFacet &)

Detailed Description

Facet class to specify parsing of a JLANG::JString object.

This class extends the std::locale::facet class.

Definition at line 26 of file JStringFacet.hh.

Member Typedef Documentation

istreambuf_iterator

std::istreambuf_iterator<char, std::char_traits<char> > JLANG::JStringFacet::istreambuf_iterator

Definition at line 34 of file JStringFacet.hh.

ostreambuf_iterator

std::ostreambuf_iterator<char, std::char_traits<char> > JLANG::JStringFacet::ostreambuf_iterator

Definition at line 35 of file JStringFacet.hh.

Constructor & Destructor Documentation

JStringFacet() [1/2]

JLANG::JStringFacet::JStringFacet ( std::size_t refs = 0 )

inline

Constructor.

Parameters

refs	reference count

Definition at line 44 of file JStringFacet.hh.

                                     :
      std::locale::facet(refs)
    {}

JStringFacet() [2/2]

JLANG::JStringFacet::JStringFacet ( const JStringFacet & )

private

Member Function Documentation

clone()

virtual JStringFacet * JLANG::JStringFacet::clone ( ) const

inlinevirtual

Clone this facet.

Returns

pointer to newly created facet

Reimplemented in JLANG::JCppFacet, and JLANG::JEquationFacet.

Definition at line 54 of file JStringFacet.hh.

    {
      return new JStringFacet();
    }

get()

istreambuf_iterator JLANG::JStringFacet::get ( const istreambuf_iterator __begin, const istreambuf_iterator __end, const std::ios_base & format, std::ios_base::iostate & result, std::string & buffer ) const

inline

Get string.

Parameters

__begin	begin position of input stream
__end	end position of input stream
format	format
result	status after input operation
buffer	output string

Returns

position of input stream

Definition at line 70 of file JStringFacet.hh.

    {
      return do_get(__begin, __end, format, result, buffer);
    }

put()

ostreambuf_iterator JLANG::JStringFacet::put ( ostreambuf_iterator out, const std::ios_base & format, const char c, const std::string & buffer ) const

inline

Put string.

Parameters

out	begin position of output stream
format	format
c	fill character
buffer	input string

Returns

position of output stream buffer

Definition at line 89 of file JStringFacet.hh.

    {
      return do_put(out, format, c, buffer);
    }

ignore()

std::istream & JLANG::JStringFacet::ignore ( std::istream & in ) const

inline

Ignore characters until next end of line.

Parameters

in	input stream

Returns

input stream

Definition at line 104 of file JStringFacet.hh.

    {      
      if (do_ignore(in, istreambuf_iterator()) == istreambuf_iterator()) {
        in.setstate(std::ios_base::eofbit);
      }
 
      return in;
    }

getline()

std::istream & JLANG::JStringFacet::getline ( std::istream & in, std::string & buffer ) const

inline

Read characters until next end of line.

Parameters

in	input stream
buffer	output string

Returns

input stream

Definition at line 121 of file JStringFacet.hh.

    {
      using namespace std;
 
      ios_base::iostate state = in.rdstate();
 
      if (do_getline(in, istreambuf_iterator(), state, buffer) == istreambuf_iterator()) {
        in.setstate(std::ios_base::eofbit);
      }
 
      if (state != ios_base::goodbit && state != ios_base::eofbit) {
        in.setstate(state);
      }
 
      return in;
    }

getIndex()

static int JLANG::JStringFacet::getIndex ( )

inlinestatic

Get index for stream associated facet data.

Returns

index

Definition at line 145 of file JStringFacet.hh.

    {
      static int i = std::ios_base::xalloc();
 
      return i;
    }

do_get()

virtual istreambuf_iterator JLANG::JStringFacet::do_get ( const istreambuf_iterator __begin, const istreambuf_iterator __end, const std::ios_base & format, std::ios_base::iostate & result, std::string & buffer ) const

inlineprotectedvirtual

Get string.

Parameters

__begin	begin position of input stream
__end	end position of input stream
format	format
result	status after input operation
buffer	output string

Returns

position of input stream

Reimplemented in JLANG::JCppFacet, and JLANG::JEquationFacet.

Definition at line 164 of file JStringFacet.hh.

    {
      using namespace std;
 
      result = (ios_base::iostate) 0;  // reset I/O status
 
      streamsize n = format.width();   // number of characters to read
 
      if (n == 0) {
        n = numeric_limits<streamsize>::max();
      }
 
      istreambuf_iterator i = __begin;
 
      if (i == __end) {
 
        result |= ios_base::failbit;    
        result |= ios_base::eofbit;
 
      } else {
 
        buffer.clear();
 
        buffer.push_back(*i);
          
        for (++i, --n; i != __end && n != 0; ++i, --n) {
          buffer.push_back(*i);
        }
 
        if (i == __end) {
          result |= ios_base::eofbit;
        }
      }
 
      return i;
    }

do_put()

virtual ostreambuf_iterator JLANG::JStringFacet::do_put ( ostreambuf_iterator out, const std::ios_base & format, const char c, const std::string & buffer ) const

inlineprotectedvirtual

Put string.

Parameters

out	begin position of output stream
format	format
c	fill character
buffer	input string

Returns

current position of output stream

Reimplemented in JLANG::JCppFacet, and JLANG::JEquationFacet.

Definition at line 215 of file JStringFacet.hh.

    {
      using namespace std;
 
      if (format.flags() & ios_base::right) {
        for (streamsize i = buffer.size(); i < format.width(); ++i, ++out) {
          *out = c;
        }
      }
 
      for (string::const_iterator i = buffer.begin(); i != buffer.end(); ++i, ++out) {
        *out = *i;
      }
        
      if (format.flags() & ios_base::left) {
        for (streamsize i = buffer.size(); i < format.width(); ++i, ++out) {
          *out = c;
        }
      }
 
      return out;
    }

do_ignore()

virtual istreambuf_iterator JLANG::JStringFacet::do_ignore ( const istreambuf_iterator __begin, const istreambuf_iterator __end ) const

inlineprotectedvirtual

Ignore characters until next end of line.

Parameters

__begin	begin position of input stream
__end	end position of input stream

Returns

position of input stream

Reimplemented in JLANG::JCppFacet.

Definition at line 249 of file JStringFacet.hh.

    {
      istreambuf_iterator i = __begin;
 
      while (i != __end && *i != '\n') {
        ++i;
      }
 
      while (i != __end && *i == '\n') {
        ++i;          // skip end of line(s)
      }
 
      return i;
    }

do_getline()

virtual istreambuf_iterator JLANG::JStringFacet::do_getline ( const istreambuf_iterator __begin, const istreambuf_iterator __end, std::ios_base::iostate & result, std::string & buffer ) const

inlineprotectedvirtual

Read string.

Parameters

__begin	begin position of input stream
__end	end position of input stream
result	status after input operation
buffer	output string

Returns

position of input stream

Reimplemented in JLANG::JEquationFacet.

Definition at line 275 of file JStringFacet.hh.

    {
      using namespace std;
 
      istreambuf_iterator i = __begin;
 
      if (i == __end) {
 
        result |= ios_base::failbit;    
        result |= ios_base::eofbit;
 
      } else {
 
        buffer.clear();
 
        for ( ; i != __end && *i != '\n'; ++i) {
          buffer.push_back(*i);
        }
 
        if (i != __end) {
          ++i;          // skip end of line
        }
      }
 
      return i;
    }

operator=()

void JLANG::JStringFacet::operator= ( const JStringFacet & )

private

Member Data Documentation

id

std::locale::id JLANG::JStringFacet::id

static

Author

mdejong

Definition at line 31 of file JStringFacet.hh.

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The documentation for this class was generated from the following files:

• JStringFacet.hh
• JStringFacet.cc